Yes, both of them are grim & best avoided, I think MAN has the edge over AMS because of the toilets being outside not to mention the disgusting state of them

After my visit to the MAN lounge, I am torn:

better than AMS: view, power outlets along the window, WiFi worked well, f&b offering (at least it looked kind of OK ... had only water though)

worse tha AMS: toilets outside and in a disgusting state that would be an embarrassment to public toilets at any subway station or football stadium (on the „premium lounge“ floor, really?) — the toilets alone ruin it, I guess

Luckily no crowds of people who tried to drink their money’s worth when I was there, just a few individuals making regular trips to the bar ...

Not terrible terrible, but nothing to really look forward to. Add the dump of an airport MAN is to the equation, and I am happy to wait another decade before I have to go back to MAN.